Tension device for twine or cord.



-Nm 68u40. Patented Aug. 2o; lem.

` c. A. A. BAND.

TENSION DE-V|GE FOB TWINE 0R CDRD.

` (Application led Dgc. 22, 1900.) (llo Model.)

Inveni': du@ aw To ctllpwhom, t may concern.-

j UNITED :STATES PATENT OFFICE.

CI-IARLESA. A. RAND, OF CHICAGO, ILLINOIS.

`TENSION DEVICE FOR TWINE R CORD.

SPECIFICATION forming part of Letters Patent No. 681,140, dated August20, 1901.

` Apnoonon ioa'no'oomtor 22,19oo`. sor1o1No.4o,74s. (No moaoi.)

Bo it known that I, CHARLESALF'REDAN- DERsoN RAND, a citizen oftheUnited States,

` residing at Ohicagopinthe county of Cook and State of Illinois,` haveinvented certain new and useful Improvements in Tension Devices forTwine or Oord;` and I do hereby de- Clare the following/co be a full,clear, and

l: exact description of the invention,lsuch as will enable othersskilled inthe art to which it appertains to make and use the same,reference being hadto the accompanying drawings, forming a part of thisspecification.

`The invention relates to tension devices y used on machines for bindinggrain, corn,&c. o where a number of balls of cord or twine havetheirendstied together and are stacked up in f 1 the can, from whichthestrands run through c the tension device to the eye of the needle or2`o binder` arm.

The object of my invention is to provide a` d tension that shall beadjustable and at the same time automatic in its operation, so that 1 .nwhen the cord ortwine catches or kinks, so o `25 as to producean`increased tension tending to break it, the tension produced by thedevice may be removed.

. "In the drawings, Figure l is an elevationV y c 1 of the upper end ofthe can, showing an end view ot the tension device. Fig. `2 i-s asection of theparts shown in Fig. 1, taken vertically through thetension device; and Fig.

. y. 3 is a top plan view of the parts shown in the can.

otherligures. t c

Referring tothe views, a represents the It is provided with the hingedlidb and is of any ordinary size, shape, and construcc non. Tho iid t isprovided with a ban-nk@ hinge c, on which it swings in opening andclosing. At one side, near the top of the can, is provided a bracket d,having the projection d', forming aportion of the trunnion for thesheave or wheel of the tension device, and

` l i just below this trunnion portion there is also a guide-eye f forleading the twine or cord to the wheel and another guide-eye f fordetermining the direction of the twine as it is drawn from the wheel. Inthe construction herewith illustrated these guide-eyes are made in onepart with the bracket d; but obviously this is a matter of convenienceand economy, and one or both may be separate therefrom, if desired. Foreconomy, simplicity, and convenience of construction I also utilize thetrunnion-bracket d for the bearing g of the hinge o of the lid. Thisbearing is best formed by the lugs or ears n, rising inside of a grooveo, formed at the upper end of the bracket ol at or near the inner end ofthe trunnion portion cl. The pintle of the bail-like hinge c fits inthis groove 0 and is removably held therein by the toe-piece m on theinner end of the movable section d2 of the trunnion,

which will presently be described.` This said l The trunnion proper issplit or divided l longitudinally into sections d' and d2, .adapted tofit loosely the bore of the sheave or `wheel e, `which is journaledthereon. The section d of the trunnion is a rigid extension of thebracket d. The section Z2 is a separate piece. It is provided with aslight projection or toe-piece m on one end, which serves as a fulcrum.This leaves an opening p between the rigid section el and the movablesection d2, allowing the latter the-desired latitude of movement. Theouter end of the section d2 is deflected laterally, as shownin Figs. 1and 3, and has the downward projection 7c, which underlies the end ofthe rigid sectiond.

Seated in the outer end of the Iixed section of the trunnion d is a rodor bolt h, that extends downwardly through the slotted end of theextension k of the movable section. Beari twine to the Wheel, aguide-eye to determine the direction of the twine as it is drawn fromthe wheel, said trunnion being longitudinally divided into sections, abearing for the pintle 5 of the bail-like hinge formed in the rigid seoition, a toe-piece 0r fulerum formed on one end of the movable sectionadapted to overlie the said bearing and hold the pintle in place, and aspring on the opposite side of

